In article , David Lednicer
wrote:

The 367-80, C-135 and 707 have a "double bubble" fuselage cross-section.
On the 367-80, the upper lobe is 132" wide and the entire fuselage is
164" tall. On the C-135, the upper lobe is 144" wide and the fuselage
is 166" tall. On the 707, the upper lobe is 148" wide and the fuselage
is 170.5" tall.

That makes a lot of sense since it was evolved from the C97 which, as
the Stratoliner, had a lounge up top and the seats down below (or vice
versa).

Pretty amazing how Boeing has frequently utilized elements of prievious
designs in new planes.

As near as I can figure out, the wings of the original 367-80, C-135,
707-120 and 707-138 are identical. The 707-320 has a much different
wing. By the end of its life, 367-80 had(has) a wing much like a 707-320.



raoul